Cadillac Repair: 1992 Cadillac Brougham, 1992 cadillac brougham, cadillac brougham

Question
Twilight Sentinal has not worked for a couple years, but I have just used the light switch and manually turned on the headlights instead.  However, beginning yesterday, the warning chime that indicates the headlights are still on when the engine is turned off began chiming even when the engine was on.  So I now any time I drive down the road with the lights on the warning chimes ring as if I had stopped the engine and forgot to manually turn off the lights.

Is this something I can remedy myself?  i.e. new light switch, etc.?  Related to the twilight sentinal problem? Or is this a repair show diagnostic only situation?

Answer
If you are mechanicaly inclined or know of someone who is, You will need simple electrical schematics, Test procedures and picture locations of the components within the system that is causing you problems of which can't be done on this website which only allows one picture. I do not have a website so you will have to e-mail: onlineautohelp@msn.com in order to obtain the information.